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Finding the Fourth Proportional to 70,310.85, 97,013.97 and 41,639.52

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Solution

The fourth proportional to 70,310.85, 97,013.97 and 41,639.52 is: 57,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,310.85 : 97,013.97 = 41,639.52 : x
  2. Step 2: Convert to fraction form
    70,310.85/97,013.97 = 41,639.52/x
  3. Step 3: Cross multiply
    70,310.85x = 97,013.97 × 41,639.52
  4. Step 4: Simplify right side
    70,310.85x = 4,039,615,144.09
  5. Step 5: Solve for x
    x = 4,039,615,144.09/70,310.85
  6. Step 6: Final answer
    x = 57,453.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.